Molecular Vision: Lorentz, Mol Vis 2011; 17:3392-3405. Table 5

Table 5. Silicone hydrogel contact lens material characteristics.

Material Type	Silicone Hydrogel
USAN	Senofilcon A	Comfilcon A	Balafilcon A
Proprietary name	Acuvue® OASYS™	Biofinity®	PureVision™
Manufacturer	Johnson & Johnson	CooperVision	Bausch & Lomb
Power (D)	−3.00	−3.00	−3.00
Base curve (mm)	8.4	8.6	8.6
Diameter (mm)	14.0	14.0	14.0
Centre thickness (mm) −3.00D	0.07	0.08	0.09
Monomers	mPDMS, DMA, HEMA, siloxane macromer, EGDMA, PVP	M3U, FM0411M, HOB, IBM, NVP, TAIC, VMA	NVP, TPVC, NVA, PBVC
Surface modification	PVP as an internal wetting agent	None	Plasma oxidation
Oxygen transmissibility (×10⁻⁹)	147	160	110
Modulus (MPa)	0.7	0.75	1.1
Water content	38%	48%	36%
FDA class	Group I	Group I	Group III

USAN: United States adopted name; DMA (N,N-dimethylacrylamide); EGDMA (ethyleneglycol dimethacrylate); FM0411M (2-ethyl [2-[(2-methylprop-2-enoyl)oxy]ethyl]carbamate); HEMA (poly-2-hydroxyethyl methacrylate); HOB ((2RS)-2-hydroxybutyl 2-methylprop-2-enoate); IBM (Isobornyl methacrylate); M3U (α-[[3-(2-[[2-(methacryloyloxy)ethyl] carbamoyloxy]ethoxy)propyl]dimethylsilyl]-ω-[3-(2-[[2-(methacryloyloxy)ethyl] carbamoyloxy]ethoxy)propyl]poly([oxy[(methyl) [3-[ω-methylpoly(oxyethylene)oxy]propyl]silylene] /[oxy[(methyl)(3,3,3-trifluoropropyl)]silylene]/oxy (dimethylsilylene)])); mPDMS (monofunctional polydimethylsiloxane); NVA N-vinyl aminobutyric acid; NVP (N-vinyl pyrrolidone); PBVC (poly[dimethysiloxy] di [silylbutanol] bis[vinyl carbamate]); PVP (poly(vinylpyrrolidone)); TAIC (1,3,5-triprop-2-enyl-1,3,5-triazine-2,4,6(1H,3H,5H)-trione); TPVC (tris-(trimethylsiloxysilyl) propylvinyl carbamate); VMA (N-Vinyl-N-methylacetamide).